Multiple unspecified vulnerabilities in PennMUSH 1.8.3 before 1.8.3p1 and 1.8.2 before 1.8.2p3 allow attackers to cause a denial of service (crash) related to the (1) speak and (2) buy functions.
http://www.vupen.com/english/advisories/2007/0921
http://www.securityfocus.com/bid/22935
http://www.pennmush.org/archives/pennmush-announce/2007/000137.html